diff --git a/src/test/java/com/alibaba/druid/bvt/filter/wall/MySqlWallTest142.java b/src/test/java/com/alibaba/druid/bvt/filter/wall/MySqlWallTest142.java
new file mode 100644
index 0000000000..33eae0a13f
--- /dev/null
+++ b/src/test/java/com/alibaba/druid/bvt/filter/wall/MySqlWallTest142.java
@@ -0,0 +1,33 @@
+/*
+ * Copyright 1999-2011 Alibaba Group Holding Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.alibaba.druid.bvt.filter.wall;
+
+import junit.framework.TestCase;
+
+import org.junit.Assert;
+
+import com.alibaba.druid.wall.WallProvider;
+import com.alibaba.druid.wall.spi.MySqlWallProvider;
+
+public class MySqlWallTest142 extends TestCase {
+
+    public void test_false() throws Exception {
+        WallProvider provider = new MySqlWallProvider();
+
+        String sql = "SELECT * FROM `my_crons` WHERE 1 OR nextrun = '0' ";
+        Assert.assertTrue(provider.checkValid(sql));
+    }
+}
diff --git a/src/test/java/com/alibaba/druid/bvt/filter/wall/MySqlWallTest143.java b/src/test/java/com/alibaba/druid/bvt/filter/wall/MySqlWallTest143.java
new file mode 100644
index 0000000000..4e53956a64
--- /dev/null
+++ b/src/test/java/com/alibaba/druid/bvt/filter/wall/MySqlWallTest143.java
@@ -0,0 +1,46 @@
+/*
+ * Copyright 1999-2011 Alibaba Group Holding Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.alibaba.druid.bvt.filter.wall;
+
+import junit.framework.TestCase;
+
+import org.junit.Assert;
+
+import com.alibaba.druid.wall.WallProvider;
+import com.alibaba.druid.wall.spi.MySqlWallProvider;
+
+public class MySqlWallTest143 extends TestCase {
+
+    public void test_false() throws Exception {
+        WallProvider provider = new MySqlWallProvider();
+
+        String sql = "SELECT" //
+                + " `Extent1`.`ID`, " //
+                + " `Extent1`.`State`, " //
+                + " `Extent1`.`CreateTime`, " //
+                + " `Extent1`.`UpdateTime`, " //
+                + " `Extent1`.`OpeningBank`, " //
+                + " `Extent1`.`BankAccount`, " //
+                + " `Extent1`.`BankAccountName`, " //
+                + " `Extent1`.`Zone`, " //
+                + " `Extent1`.`AccountantMobile`, " //
+                + " `Extent1`.`IsPublic`" //
+                + " FROM `paybank` AS `Extent1`" //
+                + " WHERE (`Extent1`.`State` > -1)" //
+                + " AND ((`Extent1`.`Zone`) = (CASE WHEN (1 IS  NULL) THEN (1)  ELSE (1) END))";
+        Assert.assertTrue(provider.checkValid(sql));
+    }
+}
diff --git a/src/test/java/com/alibaba/druid/bvt/filter/wall/SQLServerWallTest_11.java b/src/test/java/com/alibaba/druid/bvt/filter/wall/SQLServerWallTest_11.java
new file mode 100644
index 0000000000..bfd636ec67
--- /dev/null
+++ b/src/test/java/com/alibaba/druid/bvt/filter/wall/SQLServerWallTest_11.java
@@ -0,0 +1,46 @@
+/*
+ * Copyright 1999-2011 Alibaba Group Holding Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.alibaba.druid.bvt.filter.wall;
+
+import junit.framework.TestCase;
+
+import org.junit.Assert;
+
+import com.alibaba.druid.wall.WallProvider;
+import com.alibaba.druid.wall.spi.SQLServerWallProvider;
+
+/**
+ * SQLServerWallTest
+ * 
+ * @see
+ */
+public class SQLServerWallTest_11 extends TestCase {
+
+    public void test_true() throws Exception {
+        WallProvider provider = new SQLServerWallProvider();
+        provider.getConfig().setCommentAllow(true);
+
+        String sql = "SELECT KL_ArticleContent,KL_ArticleTitle " //
+                     + "FROM dbo.KL_Article " //
+                     + "WHERE KL_ArticleId =-4731 "//
+                     + "UNION ALL "//
+                     + "SELECT (SELECT TOP 1 CHAR(58)+CHAR(108)+CHAR(107)+CHAR(103)+CHAR(58)+ISNULL(CAST(name AS NVARCHAR(4000)),CHAR(32))+CHAR(58)+CHAR(109)+CHAR(122)+CHAR(104)+CHAR(58) FROM sys.sql_logins WHERE ISNULL(name,CHAR(32)) NOT IN (SELECT TOP 0 ISNULL(name,CHAR(32)) FROM sys.sql_logins ORDER BY 1) ORDER BY 1),NULL-- ";
+
+        Assert.assertFalse(provider.checkValid(sql));
+
+    }
+
+}
diff --git a/src/test/java/com/alibaba/druid/bvt/filter/wall/SQLServerWallTest_12.java b/src/test/java/com/alibaba/druid/bvt/filter/wall/SQLServerWallTest_12.java
new file mode 100644
index 0000000000..5ccc061bdd
--- /dev/null
+++ b/src/test/java/com/alibaba/druid/bvt/filter/wall/SQLServerWallTest_12.java
@@ -0,0 +1,42 @@
+/*
+ * Copyright 1999-2011 Alibaba Group Holding Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.alibaba.druid.bvt.filter.wall;
+
+import junit.framework.TestCase;
+
+import org.junit.Assert;
+
+import com.alibaba.druid.wall.WallProvider;
+import com.alibaba.druid.wall.spi.SQLServerWallProvider;
+
+/**
+ * SQLServerWallTest
+ * 
+ * @see
+ */
+public class SQLServerWallTest_12 extends TestCase {
+
+    public void test_true() throws Exception {
+        WallProvider provider = new SQLServerWallProvider();
+        provider.getConfig().setCommentAllow(true);
+
+        String sql = "EXEC master..xp_msver";
+
+        Assert.assertTrue(provider.checkValid(sql));
+
+    }
+
+}
diff --git a/src/test/java/com/alibaba/druid/bvt/sql/oracle/OracleSelectTest51.java b/src/test/java/com/alibaba/druid/bvt/sql/oracle/OracleSelectTest51.java
new file mode 100644
index 0000000000..5ba24cca04
--- /dev/null
+++ b/src/test/java/com/alibaba/druid/bvt/sql/oracle/OracleSelectTest51.java
@@ -0,0 +1,64 @@
+/*
+ * Copyright 1999-2011 Alibaba Group Holding Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.alibaba.druid.bvt.sql.oracle;
+
+import java.util.List;
+
+import org.junit.Assert;
+
+import com.alibaba.druid.sql.OracleTest;
+import com.alibaba.druid.sql.ast.SQLStatement;
+import com.alibaba.druid.sql.dialect.oracle.parser.OracleStatementParser;
+import com.alibaba.druid.sql.dialect.oracle.visitor.OracleSchemaStatVisitor;
+import com.alibaba.druid.sql.test.TestUtils;
+
+public class OracleSelectTest51 extends OracleTest {
+
+    public void test_0() throws Exception {
+        String sql = //
+        "select TRIM(TRAILING 'M' FROM RTRIM('  testM')) from dual;"; //
+
+        OracleStatementParser parser = new OracleStatementParser(sql);
+        List<SQLStatement> statementList = parser.parseStatementList();
+        SQLStatement stmt = statementList.get(0);
+        print(statementList);
+
+        Assert.assertEquals(1, statementList.size());
+
+        OracleSchemaStatVisitor visitor = new OracleSchemaStatVisitor();
+        stmt.accept(visitor);
+
+        System.out.println("Tables : " + visitor.getTables());
+        System.out.println("fields : " + visitor.getColumns());
+        System.out.println("coditions : " + visitor.getConditions());
+        System.out.println("relationships : " + visitor.getRelationships());
+        System.out.println("orderBy : " + visitor.getOrderByColumns());
+
+        Assert.assertEquals(0, visitor.getTables().size());
+
+        Assert.assertEquals(0, visitor.getColumns().size());
+
+        String text = TestUtils.outputOracle(stmt);
+
+        Assert.assertEquals("SELECT TRIM(TRAILING 'M' FROM RTRIM('  testM'))" //
+                            + "\nFROM dual;"//
+                            + "\n", text);
+
+        // Assert.assertTrue(visitor.getColumns().contains(new TableStat.Column("acduser.vw_acd_info", "xzqh")));
+
+        // Assert.assertTrue(visitor.getOrderByColumns().contains(new TableStat.Column("employees", "last_name")));
+    }
+}